Means for preparing thread lease



Jul 28 1936.

5 e. c, SMITH I 2,048,974 MEANS FOR P REPARING THREAD LEASE I FiledApril 5, 1933 'Z ZIGQ' I.

lrHnmL- July 28, 1936. G. c. SMITH 2,648,974 '7 MEANS FOR PREPARINGTHREAD LEASE Filed 'April 5, 19:53 2 Sheets-Sheet 2 F 1 7; 9EHIIIWIIIWJIH Iii! IL if ,Jmm

f i 6 J 27 5 7 i Z Patented July 28, I936 orrice one-half to Julius W.

Smith, Schoolfield, Va.

Application April 5, 1933, Serial No. 664,606

2 Claims.

This invention relates to processes incident to cloth weaving, havingfor its primary object to provide means of an improved and simplifiedmanner whereby a thread lease in the yarn may with two or more threadsto each dent. In some instances the number of threads in one dent willgreatly exceed those in another. There are certain disadvantagesattendant upon the feeding of the yarn in this manner, chief among whichis 7 that the yarn becomes more or less entangled and is likely to bunchif the threads of the yarn are not properly fed to the several dents.Due to this faulty method of feeding, it is extremely difificult andtedious to prepare a thread lease Where desired, because of the factthat with the varying numbers of threads in the several dents, it isextremely dimcult to separate these threads in equal numbers so as toform a thread lease therewith.

The present invention contemplates means whereby the yarn is fed fromthe slasher to the loom or weavers beam in such manner as to eliminatethe possibility of bunching and in such manner also that a thread leasemay be quickly and conveniently made at any desired place in the loomwarp.

In the drawings forming a part of this specification:

Fig. 1 is a top plan view of the delivery end of a conventional form ofslashing machine and illustrating as applied thereto a device involvingthe invention,

Fig. 2 is a side elevation of a device as shown in Figure 1,

Fig. 3 is a longitudinal sectional view showing the parts in theposition they will assume when preparing a thread lease,

Fig. 4 is a detail perspective View of one of the comb sections, thecomb constructed. in accordance with the invention, and

Fig. 5 is a fragmentary detail plan disclosing the lazy tong structurefor carrying the combs.

In carrying out the invention, a series of combs are arranged upon thehack and through which the several threads of the warp are passed. Thehack which carries these combs is preferably capable of being extendedor contracted by suitable means, such for instance, as the well knownlazy tong structure. The combs carried-by the lazy tong structure haveone strand arranged in each dent thereof to insure proper feeding of theseveral strands of the warp. This hack can be installed on the front ofthe slasher immediately in advance of the loom or weavers beam. Thecombs are provided with dents of varying depths and arrangedalternately. For instance, the dent of the first pair of comb teeth maystop substantially mid-way between the top and bottom of the teethwhereas the next adjacent dent will extend clear to the bottom of thecomb. This arrangement continues in this alternate fashion throughoutthe length of the comb. It is obvious, therefore, that as the threadspass through these dents they will be maintained properly spaced apartand will pass in thisfashion to the weavers beam, each thread separateor independent of the others.

More particularly, the slashing machine frame is represented at 6, andas well known to those familiar with such devices, the loom or weaversbeam i is rotatably mounted in brackets 8 on the forward end of theslasher, the yarn 9 being led thereto over a roll Ill.

The slasher frame is provided with combs ll mounted at the delivery endof the slasher machine and preferably immediately behind the roll l0.These combs have their dents disposed in vertical or upright position,and are carried by posts l2 affixed to members 13 of the lazy tongstructure. As this structure is old and Well known in the weaving art itis deemed unnecessary to resort to a detailed description of theconstruction and operation, but it is suflicient to say that lazy tongsmay be extended or contracted transversely of the machine by rotation ina proper direction of the adjusting shaft M which carries threaded nutsl5 secured to elements of the lazy tongs.

The adjusting shaft and lazy tong structure is carried by a bar or hackl6 which normally rests at its ends upon the side frames 6 of theslasher. In the present instance it is desired that this hack and thestructure supported thereby be capable of vertical movement, and to thisend the extremities of the hack are confined between upstanding posts orguides I! carried by the frame, while set screws or other securingelements l 8 upon one or more of these posts may be operated to maintainthe hack in proper adjustment.

Any number of means may be resorted to in creating vertical movement ofthe hack, but in the present instance this operation is carried out bymeans of cams l9 arranged one at each side of the frame 6. These camsare carried by a shaft 20 suitably mounted in the sides of the frame ofthe slasher, and may be rotated by a crank 2| It is obvious, therefore,that upon rotation of the cam shaft 28, the cams, which are disposeddirectly beneath the hack, will cause the said hack and theistructuresupported thereby to be moved bodily in an upward direction. When it isdesired to move the hack back to normal or operative position, the camsare moved accordingly in order that the hack may drop to its normalsupporting position upon the frame.

Each dent of the combs in the present inven' tion is to accommodate andfeed a single strand of yarn, as distinguished from a multiplicity ofstrands as has been the practice heretofore, and in carrying out thepresent invention the alternate dents of the combs vary in depth. For instance, the dentof the first pair of comb teeth stops substantiallymid-way of the top and bottom of the teeth as indicated at 22, while thebase or bottom of the next adjacent dent will be at the extreme lower.end of the comb as at 23. In normal operation of the machine, howeverthe combs will be adjusted to such vertical position that the yarn 9passing therethrough will be disposed in a true horizontal plane, asshown in Fig. 2. This plane will pass substantially through the stopportions 22 of the dents.

. In operation, the yarn to be led onto the loom or weavers beam isthreaded in the combs one strand to each dent. When this has been doneand the ends passed onto the loom beam, the hack is adjusted so as tobring the stop portions 22 of the combs into proper horizontal alignmentwith the strands being fed through the full depth dents. The. machine'isset in motion, whereupon the threads pass individually through theirrespective dents and onto the loom beam. By feeding a single strandthrough a dent it is at once apparent that a proper feeding is assuredand no opportunity is provided for clogging or snarling the yarn. Whenit is desired to make a thread lease, the machine is halted and thecrank shaft 20 is rotated so as to move the hack bodily upward. As thecombs move up, the shallower dents will have their stops 22 engage thethreads passing therethrough, raising the same, while the threadspassing through the deeper dents will remain sta tionary. This causesthe spacing of alternate threads to provide a gap sufiicient to enable alease bar, having a lease thread attached thereto,

to be passed therethrough in front of the hack. The position thealternating threads will assume is shown clearly in Fig. 3. When thelease string has been threaded through the space thus provided, thelease bar is detached and the ends of the lease string properly tied orsecured, whereupon the cams are operated to drop the hack to normalposition and the slashing machine is again set in motion. The lease thusmade passes onto 10 the loom beam as will be understood.

From the foregoing it is apparent that I have provided means ofextremely simple construction capable of ready operation and with littleeffort to bring about a proper operation of the yarn strands to quicklyprepare a lease. Moreover, a machine constructed and operated in themanner described will insure proper feeding of the yarn to the loom beamand a simplicity of operation and the quick establishment of leases forloom beam operation enables a great saving of time as Well as tofacilitate the work of weaving.

While the foregoing is a description of the invention in its preferredembodiments, it is nevertheless to be understood that minor variationsin the details of construction and assemblage of parts may be resortedto without departing from the spirit of the invention as defined by theappended claims.

Having thus described my invention, I claim:

1. In combination, a slashing machine having side frames, a beam on theforward end of said machine, vertically disposed guides carried by saidframes and opposite to each other and disposed rearwardly of said beam,a bar disposed laterally of said machine and having its ends arranged insaid guides, an extensible member carried by said bar, combs secured tosaid member, a screw rod rotatable in said bar and below the upper edgesthereof, said rod disposed longitudinally within said bar, nuts on saidmember receiving said rod and means on said frame for raising orlowering said bar.

2. In combination, a slashing machine frame,

a beam on the forward end of said frame, guides 45 carried by said frameat the rear of said beam, a bar disposed laterally of said frame andhaving its ends arranged in said guides, a rod on said bar, a togglecarried by said bar, means on the toggle cooperating with said rodwhereby rotation of the latter will extend or contract the toggle, combscarried by said toggle, and means for adjusting said bar verticallywithin its guides.

GROVER C. SMITH.

